Process for the reduction of the sulfur content in a gaseous str

Details Process for the reduction of the sulfur content in a gaseous str Process for the reduction of the sulfur content in a gaseous str

1987-04-09

1989-08-15

Heller, Gregory A.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423244, 423567R, 423574R, C01B 1702

Patent

active

048572977

ABSTRACT:
H.sub.2 S is directly oxidized to elemental sulfur by contacting an H.sub.2 S containing gas stream having a water content less than 10% by volume with air or oxygen over a catalyst containing at least 80 wt % titanium dioxide. Most of the H.sub.2 S in the gas is oxidized to elemental sulfur. The process is especially useful for recovery of additional sulfur from effluent gas from a Claus unit.

REFERENCES:
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patent: 4399112 (1983-08-01), Voirin
patent: 4479928 (1984-10-01), Voirin
patent: 4522746 (1985-11-01), Kettner
Stegins et al., "Catalytic Oxidation of Hydrogen Sulfide: Influence of Pore Structure and Chemical Composition of Various Porous Substances", Industrial Eng. Chem., Prod. Res. Dev., vol. 16, No. 1, 1977, p. 35-41.
Notice of Opposition (BASF to EPO).

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